What is expand-3(3x-5=7-4x) ?

The solution to expand-3(3x-5=7-4x) is -9x+15=7+12x

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expand-3(3x-5=7-4x)

expand

- 3 (3 x - 5 = 7 - 4 x)

- 9 x + 15 = 7 + 12 x

Solution steps

- 3 (3 x - 5 = 7 - 4 x)

= - 3 (3 x - 5 \cdot 7 = - 4 x)

Distribute parentheses

= (- 3) \cdot 3 x + (- 3) (- 5 = 7) + (- 3) (- 4 x)

Apply minus-plus rules

+ (- a) = - a, (- a) (- b) = ab

- 3 \cdot 3 x + 3 \cdot 5 = 7 + 3 \cdot 4 x

Simplify

- 3 \cdot 3 x + 3 \cdot 5 = 7 + 3 \cdot 4 x : - 9 x + 15 = 7 + 12 x

- 9 x + 15 = 7 + 12 x

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What is expand-3(3x-5=7-4x) ?
The solution to expand-3(3x-5=7-4x) is -9x+15=7+12x